Low‐Melting Perovskite Glass for Multimodal Anti‐Counterfeiting and X‐Ray Imaging DOI Open Access
Yuanyuan Wang,

Xixi Cheng,

Bobo Yang

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

Abstract Glass, with its unique amorphous properties, offers low thermal conductivity, high catalytic activity, insensitivity to interfacial lattice mismatch, and the absence of grain boundaries. Melt‐quenched organic–inorganic hybrid glass has recently gained significant attention as an emerging material because excellent processability formability. Here, SbCl 3 (C 25 H 46 ClN) x halide a melting point (90 °C) formability is reported. Both crystalline states have double broadband emission, state exhibits negative quenching, which rare in metal halides. Interestingly, luminescence properties different values differ. This feature utilized design multimodal anti‐counterfeiting information encryption applications. Additionally, The inherent melt processing capability allows it be shaped into various forms suitable for practical scintillator screens (diameter 2.2 cm) are successfully prepared by low‐temperature melting, achieving X‐ray imaging resolution 18 line pairs per millimeter (18 lp mm −1 ). study demonstrates potential melt‐processed anti‐counterfeiting, encryption, detection.

Language: Английский

Emerging 0D Hybrid Metal Halide Luminescent Glasses DOI
Bohan Li,

Yuzhen Wang,

Yan Xu

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

0D hybrid metal halide (HMH) luminescent glasses have garnered significant attentions for its chemical diversity in optoelectronic applications and it also retains the skeleton connectivity coordination mode of crystalline counterparts while exhibiting various physics/chemistry characteristics distinct from states. However, understanding glass-forming ability specific structural origins underpinning properties HMH remains elusive. In this review, is started solid-liquid phase transition thermodynamic analysis HMHs formed through melt-quenching, summarize current compounds capable stably forming glassy phases via design. The characterization methods are further discussed highlight exceptional transparency, properties, glass crystallization behaviors. Moreover, application prospects demonstrated by these been presented accordingly X-ray detection imaging, anti-counterfeiting, information encryption. Finally, perspective offered into future development emerging family their applications.

Language: Английский

Citations

2
Manipulating weak interactions between host/guest and analytes in Cu(I)-cluster-based MOF for fluorescent gas sensing towards chlorinated volatile organic compounds DOI

Yunfang Zhao,

Yangxingyu Ye,

Zhiyuan Wu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159923 - 159923

Published: Jan. 1, 2025

Language: Английский

Citations

1
Reconfigurable Glass Scintillation Screen for Conformal X‐Ray Imaging of Shape‐Changeable Objects DOI

Jinke Jiang,

Xingchu Mao,

Xiaoxin Zheng

et al.

Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

Abstract As the kernel component of X‐ray imaging systems, mainstream flat‐panel detectors suffer from image distortion and blurring when applied to irregular shaped objects, because non‐conformal collocation between detector object. Herein, by taking advantage robust glass‐forming capability versatile processability (TPT) 2 MnBr 4 (TPT = propyltriphenylphosphonium) scintillator, reconfigurable scintillation screen for conformal is explored. Compared flexible polymer screens doped with micro‐/nanoparticles, melt‐casted large‐area (20 × 20 cm ) are homogeneous immune light scattering, thus manifesting optical transmittance above 80% in 525−800 nm range high spatial resolution 25.5 lp mm −1 . More impressively, can be reconfigured shape near its glass transition temperature, realizing continuous conformance or changeable objects. Exemplified a flexed elbow joint circuit variational shapes, demonstrate superiorities both clarity (15 versus 3 imaging) reduction radiation dosage. That, plus scalable fabrication process cost‐effective raw materials, will promise great potential customized medical diagnostics industrial inspection.

Language: Английский

Citations

1
Bisphosphonium Cation Based Metal Halide Glass Scintillators with Tunable Melting Points DOI Creative Commons
Jianbin Luo,

Jun‐Hua Wei,

Zi‐Lin He

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Organic-inorganic metal halide (OIMH) glass offers the advantages of large-scale production, high transparency, and minimal light scattering. However, undesired crystallization in OIMH can occur, leading to deteriorated transparency. Herein, a series bisphosphonium organic cations were designed construct Mn-based crystals with photoluminescence quantum yield (PLQY) near unity, alongside development highly thermally stable glasses. Two strategies employed lower melting point OIMH: alkyl chain elongation fluorine substitution. The (Hex-3,4-2F)MnBr

Language: Английский

Citations

7
High‐Resolution X‐Ray Circular Polarization Imaging Enabled by Luminescent Photopolymerized Chiral Metal‐Organic Polymers DOI

Jian Lü,

Rui‐Xuan Qian,

Si‐Fan Lu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(51)

Published: Aug. 24, 2024

Abstract Scintillators can convert the ionizing radiation into visible light and are crucial in X/γ‐ray detectors. Commercial detectors often use multiple scintillators with photodetector arrays, where optical crosstalk degrade performance. Chiral scintillators, emitting circularly polarized light, offer a promising solution for regulating direction of propagation to enhance X‐ray detecting merits. Here novel chiral metal‐organic polymers have been developed via photopolymerization, using polymeric monomers 0D Mn(II)‐based organic‐metal halide hybrid achieving luminescence dissymmetry factors ( g lum ) 5.823 × 10 −2 −2.877 . Two such (atpp) 2 MnCl 4 ·0.5H O (MnCl − 1 MnBr (MnBr ), exhibit excellent scintillation rooted tetrahedral [MnX ] 2− crystal field. Compound , heavier bromine atoms, shows superior performance detection limit 0.117 µGy air s −1 compared 0.330 both surpassing medical diagnostic standard 5.50 The polymer film derived from has achieved resolution up 14.84 lp mm exceeding standards dental (2.0 breast cancer (10.0 imaging. These advancements hold significant promise high‐resolution imaging applications.

Language: Английский

Citations

5
Reversible Structural Phase Transitions in Zero‐dimensional Cu(I)‐Based Metal Halides for Dynamically Tunable Emissions DOI
Ran An, Qishun Wang,

Yuan Liang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 64(1)

Published: Sept. 12, 2024

Exploring structural phase transitions and luminescence mechanisms in zero-dimensional (0D) metal halides poses significant challenges, that are crucial for unlocking the full potential of tunable optical properties diversifying their functional capabilities. Herein, we have designed two inter-transformable 0D Cu(I)-based halides, namely (C

Language: Английский

Citations

5
The trade-off anionic modulation in metal–organic glasses showing color-tunable persistent luminescence DOI
Tianhong Chen, Yu‐Juan Ma, Guowei Xiao

et al.

Materials Horizons, Journal Year: 2024, Volume and Issue: 11(20), P. 4951 - 4960

Published: Jan. 1, 2024

Ultralong room-temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF) materials provide exciting opportunities for the rational design of persistent luminescence owing to their long-lived excitons.

Language: Английский

Citations

4
Superlattice Assembly for Empowering Metal Nanoclusters DOI
Hao Li, Xi Kang, Manzhou Zhu

et al.

Accounts of Chemical Research, Journal Year: 2024, Volume and Issue: 57(21), P. 3194 - 3205

Published: Oct. 7, 2024

ConspectusAtomically precise metal nanoclusters, serving as an aggregation state of atoms, display unique physicochemical properties owing to their ultrasmall sizes with discrete electronic energy levels and strong quantum size effects. Such intriguing endow nanoclusters potential utilization efficient nanomaterials in catalysis, electron transfer, drug delivery, photothermal conversion, optical control, etc. With the assistance atomically operations theoretical calculations on significant progress has been accomplished illustrating structure-performance correlations at single-molecule level. research achievements, turn, have contributed rational design customization functional cluster-based nanomaterials.Most previous studies focused investigating structure-property nanocluster monomers, while exploration structures hierarchical assembled was far from enough. Indeed, application aspect, controllably assembly states (e.g., crystalline materials, host-guest hybrid amorphous powders, so on) were more suitable for performance expression relative those monomeric directed downstream solid-state applications. In this context, attention should be paid state-correlated property variations occurring aggregating assembling processes better applications accordance aptitude.Crystalline aggregates are crucial structural determination also acting a cornerstone analyze by affording atomic-level information. The regular arrangement, uniform composition, close intermolecular distance cluster molecules supercrystal lattices beneficial retention amplification molecule itself state. Besides, these nanoparticles effects, intercluster distances still located nanoscale level, wherein effect is highly likely take additional synergistic Accordingly, it expected that novel performances might occur completely different monomolecular state.In Account, we emphasize our efforts exploring enhancement aggregate states, such thermal stability, photoluminescence, activity, waveguide. enhancements further supported practical uses structure determination, polarization switch, waveguide device, on. We demonstrated differences between monomers attributed change during superlattice. "superlattice assembly" intended customize function

Language: Английский

Citations

4
Emission regulation in 0D hybrid copper halides via structural transformation: from defect to non-defect states for information encryption and storage DOI
Lin Yang, Xia Liu, Bohan Li

et al.

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 110858 - 110858

Published: Jan. 1, 2025

Language: Английский

Citations

0
Flat-Shaped Copper Nanoclusters with Near-Infrared Absorption for Enhanced Photothermal Conversion DOI Creative Commons
Yanru Yin, Jing Sun,

Jiahe Liu

et al.

JACS Au, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Atomically precise metal nanoclusters have emerged as a prominent area of research in recent years, yet the majority previous studies primarily concentrated on gold and silver ones. The challenge controlling shape copper order to investigate their relationship properties remains significant concern contemporary scientific research. In this study, we successfully achieved control nanocluster with rare flat oblate structure using combination multiple ligands (trifluoroacetic acid, 4-fluorothiophenol, triphenylphosphine). resulting nanocluster, composition Cu62(4-F-PhS)30(CF3COO)8(PPh3)6H10, features core aspect ratio high 2.6, which is stabilized by attached or bridged onto kernel. Unlike most previously reported nanoclusters, Cu62 exhibits absorption near-infrared range. Density functional theory calculations reveal that main occurrence transitions takes place at equatorial radius core, corresponding radial exciton oscillation caused confinement flattened inner structure, similar plasmon resonance nanoparticles. unique can also promote photothermal conversion efficiency (PCE). temperature cluster solution increases from room around 90 °C just 10 min, achieving PCE approximately 56%. This study not only has potential stimulate further both structures exploration applications but provides model system for investigating between nanomaterials.

Language: Английский

Citations

0